Method of building heel-blanks



D. PARKS.

METHOD OFVBUILDING HEEL BLANKS.

APPLICATION FILED DEC. 12. 1919.

1,383,846. Patented July 5, 1921..

Men Z01; 267272229 farins.

,UNHTE stares PATENT series,

DENNIS PARKS, or s r. 'LOKUIS,V:IVIISSOYUYB.I

METHOD OF BUILDING HEEL-BLANKS.

Specification'of Letters Patent.

Patented July 5, 1921.

Application filed December 12,'1919., Serial No. 344,287.

' of building decked heel blanks, and has for its object a simple method of procedure whereby a heel blank of this character may be readily and accurately assembled to gage height, nailed and then forced into a log holder, so that a series of the heel blanks may be held in the holder in column formation and under pressure, the column being gradually forced through the holder 'assuc- 'cessive heel blanks are added and the heel v blanks passing out of the bottom of the holder in the order of their-entrance.

As is well known, a decked heel tapers on its rounded side from the base or widest-portion of the heel to the top, or tread portion, and the base of the heel is inclined to the vertical vwhile the top 'or tread portion islevel. The invention as above outlined involves, therefore, the employment of wedgeblocks to compensate for the angular disposition of the bottom of the heel-blank, so that when in position in the holder the breast of the heel blank will maintain a true ertical position, and be flush with the breast-plate of the holder, as is necessary to maintain perfect alinement of the lifts until the paste has set, and to insure that the column, as a whole, will move in a right line through the holder.

In a companion application filed December 12,1919, Serial No. 344,288,I have described 'a method of building decked heel blanks where no nails are employed, and in which means are used for maintainingthe lifts of the blanks in position during the passage of the heel blanks through the-log holder.

Thepresent invention is concerned with the building of decked heel blanks which are to be nailed, and which, therefore, do not require to be otherwise acted on to prevent slippage of the lifts'in the holder as .thisfunction is adequately performed by the and after nailing the lifts, force the result,

ant heel-blank downward into the holder; a suitable. machine for this purpose bein 1 shown in the patentof Mitchell, Wolfean Parks, No. 1,352,302, dated September 7 1920. An objection to this manner of procedure resides in the fact that each heel- I blank is built on apreceding heel-blank, which has been 'forced'into the holder, the height of the heel-blank'being determined bya gage on the holder, and due to the swelling, or expansion, of the heel-blankin the holder after pressure is removed, it is impossible to secure accuracy in the height of the heel-blank being built. In other words, as the heel-blanks are built to gage height in order that the resultantheels may be of a uniform height, the swelling of the heelblank in the holder, which acts as thebase forthe heel-blank being built, necessarily reduces the distance from the base to thetop of the scale,-and asthe expansion, or swelling, of the heel-blanks in" the holder is not uniform, the result of building heel-blanks in this manner is that they gwill not be uniform in height andwill almost always be of less height than desired, g 7

The present invention, has for a specific object, therefore, to enable heel-blanks tobe built to gage height on a fixed support exterior to the log holder, and thereafter. to be moved over the support to "a position above the log holder, nailedand forced into the holderus 'In proceeding according to the present inyention, the lifts are preferably assembled on a wedge-shaped block mounted on a. support or table, which is usuallylevel; when the heel-blank has been built the wedgeblock with the assembled lifts thereon is moved over the Imouth of' the log holder, a nail is driven; through the assembled lifts and the same with the wedge-block-forced into the holder, in which they are held by frictional engagement with the walls of the holder, while *each preceding wedge-block and heel-.blankthus forced into the holder entrance of asucceeding wedge-block and heel-blank. 7 f i l The frictional engagement of the heelblank'with the walls of the holder-is sulfi- .cient to insure considerable'pressure being produced upon the heel-blanks already in the holder bythe entrance of another heelblank, and is also sufiicient toimaintain th pressure thus produced; that is, to prevent upward movement of the heel-blanks after they have been forced into the holder, so that the whole column of heel-blanks will be maintained under ressure. Eventually the heel-blanks are discharged from the lower end of the holder one by one in the order of their entrance therein, and the length of the holder is sufficient to insure that the paste shall set, before the heel-blanks are. discharged from the bottom thereof. In order that the invention may be more clearly understood, 1 have illustrated a simple form of apparatus by which the same may be performed, it being understood, however, that in actual practice an automatic machine similar to that described in'the patent of Mitchell, Wolfe and Parks, above referred to, but appropriately modified, would ordinarily be used in building these heel-blanks.

In the accompanying drawing;

Figure 1 is a broken view, p .rtly in elevation and partly in section showing a simple form of apparatus for practising my invention l Fig. 2 is a perspective view of one of the wedge-blocks; and I is a view similar to Fig. 1, illustrating a different method of procedure. ,Referring to the drawing the numeral 3 indicates, generally, a log holder, which may be of any well known or preferred construction, and at the top of which I mount a table 4:. This support is adjustably mounted in a casting 5 and may be adjustet tov various inclinations with respect to the holder 3, and held in such adjusted positions, by a set screw 6., This is the same character of support as described in my companion application, and would ordinarily be adjusted to an inclined position only when pasted heel-blanks were to be built, and the separating members described in said application, used. 0n either side, the table l is provided with guide-ways T, on which is slidably mounted a block 8, which maybe provided on its upper side, with a handle 9 for moving it. 011 itsforward end the block is, provided with a heel-gage 10, the lower end of which slides over the top. of the table 1,. and the front face of which is flat and vertical to serve as a guide for the breasts of the lifts in building the heelblank. The numeral 11 indicates a fixed support on which is pivotally mounted, as

indicated at 12, a lever 18, the'rear end of said lever projecting beyond said support and having a weight 14; secured thereto in order to hold the forward. end of the lever 13 normally in a raised position. intermediate its'ends, the lever 13 is provided with a slot 14, which engages a pin 15 on a slideblock 16 slidably mounted above the holder '3 in line therewith. On the lower side of the slide-block is mounted a nail driver 17.

Below the slide-block 16 is mounted a nail block 18, which is supported from the slideblock by means of a link 19 having a slot 20 engaging over pin 15. The nail-block 18 is vertically apertured to provide a nailholder, and a spring 21 is mounted in this has its under side level and its top side in-' clined. It also hasthe general shape of a lift, havin one end rounded, and the other straight. fln proceeding according'to my invention, one of these wedge-blocks is first placed on the table 4, withits straight and thick end against the heel gage 10. In building up the heel-blank, the first lift is placed upon the wedge-block and this lift, as

well as one or more other lifts, will be wedgeshaped in order to compensate for the incline of the wedgerblock and so that the topmost lift, indicated by as, will be level. After the lifts for a heel-blank have thus been assembl d to. the required height, as determined by the heel-gage 10, the block '8 is moved toward the holder 3 to bring the assembled lifts over the mouth thereof and under the nail block 18. 'lhe lever 13 is provided with a handle 25 at its outer end, and by grasping and pulling down on this handle the operator depresses the slide-block 16, which causes the driver 1'] to enter the aperture in" the nailblock 18, and expel the nail therefrom and force it into the heel blank. As the slide-block 16 engages the nail block 18', the latter will be moved downward to force the wedge-block 23 with the lifts thereon into the holder 3. On releasi ngthe handle 25, theparts will be restored to their respective positions, shown in the drawing, by the weight 14. V

By proceeding in the manner described, 1 am enabled in a very simple and rapid manner to build decked heel-blanks of a definite height having the proper inclination at the base, and by nailing these blanks and forcing the same with the wedge-blanks in succession into a holder, to, continuously form; a column of such decked heel-blanks, and to maintain them in the correct position in the holder through the medium of the interposed wedge-blocks, which. compensate for the incline of the bottom of the heelblank, and permit the breasts of the heel-blanks to lie flush against the breastplate 26 of the holder, and the columns of blanks as a whole to move in a right line through the holder as successive blanks are forced therein.

It will be obvious that the lifts can be assembled directly on the table 4, as in my companion application, in which case thetable a would be inclined, and that the wedgeblocks could then be placed on top of the heel-blank after the latter has been forced into the holder, and to a sufficient distance below the top thereof to permit the inserted wedge-block to lie flush with the top of the holder. Such a method of procedure is illustrated in Fig. 3 wherein the table is shown inclined and a heel-blank 27 is shown as having been assembled thereon and a wedge block 28 is shown placed on the top of the last heel-blank forced into the holder.

I claim:

1. The method of building decked heelblanks, which comprises assembling the lifts in the proper order to gage height upon an inclined support to form a heel-blank having an inclined base, moving said heel-blank bodily to a position above the log holder and forcing it therein, while preserving the relative angularity of the lifts thereof, and maintaining a plurality of heel blanks so formed in separated relation and column formation in said holder.

2. The method of building declzedh'eeh blanks, which comprises assembling lifts in the proper order to gage height upon an inclined support to form a heel-blank having an inclined base, moving said heel-blank bodily to a position above the holder,,then nailing the assembled lifts and forcing them into said holder, while preserving the relative angularity of the lifts, and maintaining a plurality of heel-blanks so formed in separated relation andcolumn formation in said holder.

column formation in saidholder.

a The method of building decked heelblanks, which comprises assembling pasted lifts in the proper order upon a wedgethe wedgeblock with the heel-blank thus formed into a log holder. J

5. The method of building decked heelblanks, which comprises placing a wedgeblockhaving a flat lower side and an inclined upperside on a level support, assembling lifts in the proper order upon the in clined side of said wedge-block, moving the wedge-block and lifts thereon over a log holder, then nailing the assembled lifts, and finally forcing the wedge-block ,with the heel-blank thus .formed thereon into the log holder. V

.6. The herein described method which comprises assembling the lifts of a decked heel-blank in'proper order upon the inclined side of a' wedge-block, movingfsaid wedgeblock with the lifts thereon to a position over a log holder, nailing the assembled lifts and forcing the wedge-block with the heel-blank thereon into the holder, and continuing building and treating successive heel-blanks in the same manner, whereby a series of heelblanks, with a wedge-block interposed between adjacent heel blanks, will be placed in In testimony whereof, I have hereunto set V 

